221418561

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{701}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 369982080

約数和(自身を除く): 148563519

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 169, 267, 273, 507, 623, 701, 1157, 1183, 1869, 2103, 3471, 3549, 4907, 8099, 9113, 14721, 15041, 24297, 27339, 45123, 62389, 63791, 105287, 118469, 187167, 191373, 315861, 355407, 436723, 811057, 829283, 1310169, 2433171, 2487849, 5677399, 10543741, 17032197, 31631223, 73806187, 221418561]

約数ペア:

[(1, 221418561), (3, 73806187), (7, 31631223), (13, 17032197), (21, 10543741), (39, 5677399), (89, 2487849), (91, 2433171), (169, 1310169), (267, 829283), (273, 811057), (507, 436723), (623, 355407), (701, 315861), (1157, 191373), (1183, 187167), (1869, 118469), (2103, 105287), (3471, 63791), (3549, 62389), (4907, 45123), (8099, 27339), (9113, 24297), (14721, 15041)]